Glowseen LED Reflective Safety Vest-USB Rechargeable-High Visibility with Reflective Stripes for Outdoor Activities Vest-White Be seen in the dark be safety when You are Wearing It .For general people who wear it Adjustable with clip and elastic strap ,Lightweight, versatile and comfortable; fit Women , Men & Kids Eco-Friendly &USB Rechargeable Battery : No More Buying and Replacing Batteries; Can work 6-8 Hours of Illumination per 2-Hour Charge. Save Your Money and USB Cable can be powered any USB outputs EASY TO USE and 3 FLASH MODE: Easy-to-use, just click to change the Light Lighting /Quick Flash/ slow flashing Unlimited Applications for safety and glow in the dark. Great for road side construction workers, tow truck drivers, traffic directors and parking attendant and more